/*
 * Copyright (c) 2010-2014. Axon Framework
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.axonframework.serialization;

/**
 * RevisionResolver implementation that returns a fixed value as revision, regardless of the type of serialized object
 * involved. This can be useful when using the application version as Revision, for example.
 *
 * @author Allard Buijze
 * @since 2.0
 */
public class FixedValueRevisionResolver implements RevisionResolver {

    private final String revision;

    /**
     * Initializes the FixedValueRevisionResolver to always return the given {@code revision}, when asked.
     *
     * @param revision The revision to return
     */
    public FixedValueRevisionResolver(String revision) {
        this.revision = revision;
    }

    @Override
    public String revisionOf(Class<?> payloadType) {
        return revision;
    }
}
